The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
Oct. 24, 2018
Applicant:
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Inventors:
Assignee:
Minebea Co., Ltd., Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/00 (2006.01); F16C 3/02 (2006.01); F16D 1/08 (2006.01); F16D 1/072 (2006.01); F16C 19/54 (2006.01);
U.S. Cl.
CPC ...
H02K 7/003 (2013.01); F16C 3/02 (2013.01); F16D 1/0858 (2013.01); F16C 19/546 (2013.01); F16D 1/072 (2013.01);
Abstract
A motor includes: a motor shaft including a press-fitting surface; and a first annular projection group and a second annular projection group formed in the press-fitting surface of the motor shaft. The first annular projection group and the second annular projection group are separated from each other in an axial direction, a distance between an adjacent two of annular projections in the first annular projection group and a distance between an adjacent two of annular projections in the second annular projection group are smaller than a distance between the first annular projection group and the second annular projection group in the axial direction.